Eruv

An eruv ([ʔeˈʁuv]; Hebrew: עירוב‎, ""mixture"", also transliterated as eiruv or erub, plural: eruvin [ʔeʁuˈvin]) is a ritual enclosure that some communities construct in their neighborhoods as a way to permit Jewish residents or visitors to carry certain objects outside their own homes on Sabbath and Yom Kippur. An eruv accomplishes this by integrating a number of private and public properties into one larger private domain, thereby countermanding restrictions on carrying objects from the private to the public domain on Sabbath and holidays.The eruv allows these religious Jews to, among other things, carry house keys, tissues, medicines, or babies with them, and use strollers and canes. The presence or absence of an eruv thus especially affects the lives of people with limited mobility and those responsible for taking care of babies and young children.